The Jacksonville Jaguars tight end has also reportedly agreed to restructure his contract, potentially lowering his base salary in 2018 and 2019.

Neither Thomas’ deal, nor the corresponding deal which sends left tackle Branden Albert to Jacksonville for a late-round pick in 2018, can be finalized until March 9, which is the start of the new league year.

The Dolphins are giving up a seventh-round pick in 2017 to get Thomas, who caught 30 passes for 281 yards and scored four touchdowns in the nine games he played the Jaguars last season.

Thomas was almost exclusively used on passing downs in Jacksonville, where he was viewed as a major disappointment after signing a five-year, $46 million contract in 2015.

The Miami Dolphins have had their share of underachieving draft picks, but none more disappointing than ...

The past two seasons he’s been slowed by ankle, knee, hand, chest, abdomen, elbow and back injuries. The back injury forced Jacksonville to place him on injured reserve in December.

The Dolphins hope Thomas, a six-year veteran who turns 29 in June, will be able to regain the level of production he had while playing for Dolphins head coach Adam Gase when the two were together in Denver.

With Gase as his offensive coordinator Thomas, who played college basketball at Portland State, caught 65 passes for 788 yards and 12 touchdowns in 2013. He had 43 receptions for 489 yards and 12 touchdowns in the 13 games he participated in during the 2014 season.

He’s a matchup nightmare in the red zone for linebackers because of his top-shelf hands and jumping ability. However, Thomas’ struggles as an in-line blocker might force Miami to re-sign Dion Sims, who excels at blocking.

Miami Dolphins cornerback Tony Lippet talks about overcoming his injury from last season.

Miami Dolphins cornerback Tony Lippet talks about overcoming his injury from last season.

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Participants raise money for cancer research during the Dolphins Cancer Challenge at Hard Rock stadium. All of the participant-raised funds goes to innovative cancer research at the Sylvester Comprehensive Cancer Center.

Participants raise money for cancer research during the Dolphins Cancer Challenge at Hard Rock stadium. All of the participant-raised funds goes to innovative cancer research at the Sylvester Comprehensive Cancer Center.

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Dolphins vice president of football operations Mike Tannenbaum said at the Senior Bowl that he wants to address every position in free agency to free the team up to take the best players available in the 2018 draft.

Dolphins vice president of football operations Mike Tannenbaum said at the Senior Bowl that he wants to address every position in free agency to free the team up to take the best players available in the 2018 draft.

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Miami Dolphins general manager Chris Grier praised the growth Charles Harris and liked what his fellow rookies showed in 2017.

Miami Dolphins general manager Chris Grier praised the growth Charles Harris and liked what his fellow rookies showed in 2017.

Sims had his best season in the NFL last year, catching 26 passes for 256 yards and four touchdowns in the 14 games he played. He missed two games because of a concussion he suffered at midseason. It is possible that Sims might draw interest from other teams if he becomes an unrestricted free agent.

Jordan Cameron, who missed all but three games last season because of concussion issues, is also an unrestricted free agent.

The only other tight ends Miami has under contract are MarQueis Gray, who signed a two-year extension worth $2.1 million, at the end of last season, and Thomas Duarte, the Dolphins’ 2016 seventh-round pick.

Dominique Jones, who played in nine games last season, is a restricted free agent, but it is unlikely that Miami will give him a original round tender that will pay him $1.8 million.

The one-year extension defensive end Cameron Wake signed last weekend, which guarantees him $11 million over the next two seasons, will cost the Dolphins $7.5 million against the cap in 2017. That means Miami will have roughly $43 million in cap space to spend this offseason if Thomas’ salary in 2017 remains $7.1 million.